Spark-arrester



(No Model.)

G. D. HUNTER.

SPARK ARRESTER.

No. 293.965. PatentedFeb. 19,1884.

' WITNESSES w INVENTOR 2 NiTED STATES PATENT OFFICE.

GEORGE D. HUNTER, OF TERRE HAUT E, ASSIGN OR OF TlVO-THIRDS TO MORTON" C. HUNTER INDIANA. I

AND THOMAS C. VAN NI IYS, OF BLOOMINGTON,

SPARK-ARRESTERL SPECIFICATION forming part of Letters Patent No. 293,965, dated February 19, 1884.

Application filed December 11, 1883. (No model.)

To mZZ whom it may concern:

Be it known that I, GEO. D. HUNTER, a citizen of the United States, residing at Terre Haute, in the county of Vigo and State of Indiana, have invented certain new and useful Improvements in Spark-Arresters, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to certain new and useful improvements in spark-arresters; and it is particularly designed to be used in locomotives as an improvement over the means shown in Letters Patent granted to me Octoher 2, 1883, and numbered 285,899, of securing and sustaining the deflecting-screen; and it has for its object to provide for simplicity of construction in this particular.

ith these ends in view my invention consists, essentially, in constructing a deflectingscreen of conical form, having its upper end enlarged, so as to occupy the entire inner diameter of the smoke-stack, and its lower end fitted upon the upper section-of the exhaustconfining tube, and of braces connected with said section, and with the lower part of the smoke-stack, or the stack-saddle, preferably, by extending into apertures formed therein.

In the accompanying drawing, forming a part of this specification, and on which like letters of reference indicate corresponding features, the figure represents a vertical longitudinal sectional view of a portion of a locomotive-boiler and a'smoke-box having my improvement applied thereto, and also represented in vertical section.

The letter A indicates the smokebox of a locomotive of the ordinary construction. Mounted upon and secured to the said box is the smoke-stack saddle B, the same being constructed, preferably, of cast-iron. Upon this saddle the stack 0 (a portion of which only is shown in the drawing) is fitted and secured.

The letter D indicates a conical deflectingscreen provided with a series of elongated per-' forations, the same being arranged, if desired, as described in my Letters Patent before alluded to, although they may be formed and arranged in any other convenient manner.

. It will be observed that the upper end of this 5 screen is inclose contact with the inner wall of the smokesta-ck saddle; but it may extend into the stack, and at the lower end it is fitted upon a shoulder, preferably an angular shoulder, of the upper section, E, of the exhaustconfining tube F. This section has a vertical and a horizontal flange occupying, respectively, the forward and rear portions of its lower end, the peculiarity and object of which are set forth in the patent previously mentioned. Three or more braces, G, are secured by bolts or rivets, or otherwise to the section E, at

their lower end, and at their upper end are bent outwardly and inserted in apertures in the lower part of the saddle B. The position of these braces is such that they cannot become dislodged from the saddle.

The frame H, which is secured to the door I and the drum J and the sections of the exhaust-confining tubes which are located within the same, need not here be described, as they, too, arefully set forth in the patent before mentioned.

It is to be observed that the function of the screen D is to divide the smoke and gaseous products from the more solid particles of combustion which escape into the smoke-box and are not separated by the drum J, the perforations in the screen allowing the smoke and gaseous products to escape, while the more solid particles fall to the bottom of the smokebox. After thus collecting in the lower part of the smoke-box, they are conducted into a suitable receptacle or extinguisher, as more fully set forth in my patents issued October 2, 1883, numbered, respectively, 285,899 and Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a spark-arrester, the screen for dividing the smoke from the more solid particles of combustion, in combination with the tubular section and the braces secured thereto and extending into apertures formed in the saddle.

2. In a spark-arrester, the conical screen for dividing the smoke from the more solid particles of combustion, having its upper end fitted against the inner wall of the stack or saddle, in combination with the tubular section fitted to its base and the braces secured to said sec tion and extending into apertures formed in the saddle. v

3. In a spark-arrester, the combination,with 5 the tubular section having an angular shoulder, of the conical drum fitted thereon at its lower end and against the inner wall of the stack or saddle at its upper end, and the braces secured to the tubular section and ex- IO tending into apertures formed in the stack.

4. In a spark-arrester, the tubular section of the exhaustconfining tube, in combination with a series of braces secured thereto and extending into apertures formed in the stacksaddle.

GEO. D. HUNTER.

Witnesses:

G. W. FARIS, SAMUEL R. HAMILL. 

